Support for multiple back ends, and dynamic back end selection

You can now define multiple back ends for the same API deployment, so that requests sent to the same API gateway can be routed to different back ends.

When defining multiple back ends for the same API deployment, you create rules to enable the API gateway to dynamically select the back end to which to route a request, based on an element in the original request.

For more information, see Dynamically Selecting API Gateway Back Ends Based on Request Elements.